CVE-2025-7416
Published: 10 July 2025
Summary
CVE-2025-7416 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Tenda O3 Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 18.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
SI-2 requires timely remediation of flaws like this stack-based buffer overflow through patching the affected Tenda firmware version.
SI-10 enforces validation of the manipulated 'Time' argument in the /goform/setSysTimeInfo endpoint to prevent buffer overflow.
SI-16 implements memory protections such as stack canaries and DEP to mitigate exploitation of the stack-based buffer overflow.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stack-based buffer overflow in the httpd web interface (/goform/setSysTimeInfo) enables remote code execution on the router, facilitating exploitation of public-facing applications and remote services.
NVD Description
A vulnerability, which was classified as critical, was found in Tenda O3V2 1.0.0.12(3880). Affected is the function fromSysToolTime of the file /goform/setSysTimeInfo of the component httpd. The manipulation of the argument Time leads to stack-based buffer overflow. It is possible…
more
to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Deeper analysisAI
CVE-2025-7416 is a critical stack-based buffer overflow vulnerability affecting Tenda O3V2 firmware version 1.0.0.12(3880). The flaw resides in the fromSysToolTime function within the /goform/setSysTimeInfo file of the httpd component, triggered by manipulation of the Time argument. Published on 2025-07-10, it is associated with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-121 (Stack-based Buffer Overflow), earning a CVSS v3.1 base score of 8.8.
An attacker with low privileges can exploit this vulnerability remotely over the network with low complexity and no user interaction required. Successful exploitation grants high impacts across confidentiality, integrity, and availability (C:H/I:H/A:H), with no change in scope, potentially enabling arbitrary code execution on the affected device.
References point to a GitHub repository containing a proof-of-concept exploit and VulDB entries detailing the issue. No vendor advisories or patches are specified in the available information, though the public disclosure of the exploit indicates potential for immediate use in attacks.
Details
- CWE(s)